Home / 150,695.12-207,958.92-87,031.28

Finding the Fourth Proportional to 150,695.12, 207,958.92 and 87,031.28

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Solution

The fourth proportional to 150,695.12, 207,958.92 and 87,031.28 is: 120,102.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,695.12 : 207,958.92 = 87,031.28 : x
  2. Step 2: Convert to fraction form
    150,695.12/207,958.92 = 87,031.28/x
  3. Step 3: Cross multiply
    150,695.12x = 207,958.92 × 87,031.28
  4. Step 4: Simplify right side
    150,695.12x = 18,098,930,995.02
  5. Step 5: Solve for x
    x = 18,098,930,995.02/150,695.12
  6. Step 6: Final answer
    x = 120,102.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.